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sonic-cli 'show interface Ethernet' gets exception for ipv6 disabled subinterface #149
Description
The sonic-cli command 'show interface Ethernet' always gets exception for ipv6 disabled subinterface.
sonic# show interface Ethernet
Traceback (most recent call last):
File "/usr/sbin/cli/sonic-cli-if.py", line 119, in <module>
run(func, sys.argv[2:])
File "/usr/sbin/cli/sonic-cli-if.py", line 113, in run
return getattr(Handlers, func)(*args)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/usr/sbin/cli/sonic-cli-if.py", line 97, in get_openconfig_interfaces_interfaces
show_cli_output(template, resp.content)
File "/usr/sbin/cli/scripts/render_cli.py", line 164, in show_cli_output
t_str = (j2_env.get_template(template_file).render(json_output=response, **kwargs))
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/usr/local/lib/python3.11/dist-packages/jinja2/environment.py", line 1295, in render
self.environment.handle_exception()
File "/usr/local/lib/python3.11/dist-packages/jinja2/environment.py", line 942, in handle_exception
raise rewrite_traceback_stack(source=source)
File "/usr/sbin/cli/render-templates/show_interface.j2", line 80, in top-level template code
{% set ip_list = subif["openconfig-if-ip:ipv6"]["addresses"]["address"] %}
^^^^^^^^^^^^^^^
File "/usr/local/lib/python3.11/dist-packages/jinja2/environment.py", line 471, in getitem
return obj[argument]
~~~^^^^^^^^^^
jinja2.exceptions.UndefinedError: 'collections.OrderedDict object' has no attribute 'addresses'
As indicated from the stack trace, I found the line 80 of CLI/render/templates/show_interface.j2 is: {% set ip_list = subif["openconfig-if-ip:ipv6"]["addresses"]["address"] %} -> it dones't check if addresses field exist in its parent json object.
I also queried the interfaces config from HTTPS endpoints curl https://localhost/restconf/data/openconfig-interfaces:interfaces --insecure:
...
"openconfig-if-ip:ipv6":{
"config":{
"enabled":false
},
"state":{
"enabled":false
}
},
...
The openconfig-if-ip:ipv6's value doesn't contain an addresses field. I think that's the reason of this exception
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